Matlab在液浮陀螺随机漂移建模中的应用

Modeling Random Drift of Liquid Gyro Using Matlab

介绍陀螺随机漂移数据处理与模型建立过程,基于时序建模理论并结合实测的液浮陀螺随机漂移数据,利用Matlab自带函数,建立液浮陀螺随机漂移的平稳时间序列模型,避免了繁琐的编程,减少了建模的计算量,有效提高了模型的精度和效率。

Random drift from liquid gyro is the major source for errors in inertial navigation system （INS）. To develop an accurate mathematic model and to perform real-time estimation and compen- sation will be of help to reduce the error due to the drift of liquid gyro and improve the accuracy of positioning of INS. Based on the theory of TSA （Time Series Analysis） , a procedure regarding modeling and data processing for random drift of the liquid gyro is described. By using test data and several Matlab functions, a TSA model for the random drift of liquid gyro is established. By using Matlab, the tedious code programming can be avoided, the computing burden can be reduced, and the accuracy and the efficiency-of the model can be improved.